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3 cijfers X 3 cijfers met hulp [3]

3 cijfers X 3 cijfers met hulp [3]

 
2 9 3
8 2 3 ×
3 × 3 =
9
3 × 90 =
270
3 × 200 =
600
20 × 3 =
60
20 × 90 =
1800
20 × 200 =
4000
800 × 3 =
2400
800 × 90 =
72000
800 × 200 =
+ 160000
241139